Metal barrel



Sept. l; 1936.

L. w. .EVANS METAL BARREL Filed Sept. 26, 1933 Patented Sept. l, 1936UNITED STATES PATENT GFFICE METAL BARREL Llewellyn W. Evans, `Richmond,Calif., assigner to Rheem Manufacturing Company, Richmond, Calif.

Application September 26, 1933, Serial No. 691,009

5 Claims.

The invention relates-to metal barrels and particularly to the multi orhollow-walled type.

An object of the invention is to provide a doul ble-walled metal barrelin which both the innerl 'inner and outer walls are so formedindividually and associated the one with the other in such manner as tomake the assembled structure of maximum strength and sturdiness with theuse of but comparatively very light and thin material for the walls.

A further object of the invention is to provide the barrel with rollingshoulders which will communicate their load directly'to the inner aswell as the outer wall of the barrel but without shock or jar.

The invention possesses other objects and features of advantage, some ofwhich, with the foregoing, willbe set forth in the following descriptionof the preferred form of the invention which is illustrated in thedrawing accompanying and forming part of the specification. It is to beunderstood, however, that variations in the showing made by the saiddrawing and description may be adopted within the scope of the inventionas set forth in the claims.

Referring to said drawing:

Figure l is a longitudinal sectional view of a barrel formed inaccordance with my invention.

Figure 2 is a view similar to Figure 1 with parts broken away to reducethe size of the figure, and showing a modified form of the invention.

The barrel as illustrated in 'Figure 1 includes inner and outer shells 3and 4 each having side and end walls so as to provide complete butentirely independent enclosures. Both shells are each formed of twohalf-sections, and the sections 6 and I of the inner shell are connectedpreferably by a lock seam and assembled with the joint 8 therebetween ina plane coextensive with the longitudinal axis of the barrel, whereasthe sections 9 and I0 of the outer shell are connected preferably by abutt seam and with the joint I2 thereof disposed in a plane transverselyof said axis. The sections of the shell 4 are assembled and connectedafter the sections 6 and 'I of the inner shell have been welded at thejoint and ctherwise rendered suitable for use as a container. It isimportant to note that due to the weldcompletely around the shell andprovides the poring and presence of added material at the joints, theshells will have thereat the greatest resistance to collapsing, andsince the joints for the different shells are at right angles to one an-'other and traverse the longitudinal and trans- 5 verse centers of thebarrel, a most effective reenforcement for the barred will be provided.It will of course be understood that while I have shown the shells aseach formed of two sections, such number may be varied. 10 Means areprovided for holding the different shells in position with the sides.and ends of the one shell in opposed and spaced relation to the sdesand ends of the other shell, or in other words l supporting the innershell within but entirelyr15 spaced from the outer one. Furthermore themeans so provided serve not only to space the shells but to a verymaterial extent prevent the inner casing from receiving the shocksand'jars to which the outer shell may be subjected when 20- the barrelis being roughly handled. The means aforesaid, in the presentembodiment, are in the form of spacing rings I4 and I5, and spacerplates I6, the rings i4 being interposed -between the opposing sidewalls of the shells while the rings I5 25 are located at the juncture ofthe side and end walls of the different shells. The plates I6 are fittedbetween the opposing end walls and may be co-extensive with joint 8thereat so as to prevent damage to the latter in case an end wall of theouter shell is bent inward. All the rings and plates areformed of aresilient material, such as rubber, and are fitted tightly between theopposing shell surfaces so as to hold the shells firmly in the desiredspaced relation. The plates are 35 seated in pockets I8 in the end wallof the outer shell so that they cannot become displaced, while the ringsI5 are for a like purpose provided with extended portions I9 whichengage in recesses 2I defined on the inside of rims 22 at the junctureof the side and end walls of the outer shell. Incidentally, it will benoted that the rims 22 are formed as integral extensions of the walls ofthe outer shell and are strengthened with reenforcing rings 23conforming to the shape of and locked in 45 the interior of the rims.

The rings I4 not only serve to hold the side walls of the shells spaced,but for directly communicating to the inner shell without jar, some ofthe load on the outer shell such as when the barrel is being rolled onits sides. As will be clear from Figure 1, there is formed in and aspart of the side walls ofthe outer shell, on each side of the joint I2,a rolling shoulder ,26 which extends tion thereof of lgreatest diameterso that when the barrel is laid on its sides the shoulders willordinarily rest on the supporting surface. The shoulders present on theinner surface of the outer shell annular grooves 21, and it is in suchgrooves that the rings I4 are seated and thereby held againstdisplacement. 'I'he ringsl I4 preferably llthe entire space in thegrooves and have their base portion widened so as to afford a. largearea, of contact with the inner shell. In order to render the outershell somewhat resilient and yet of greater strength, the side Wallportions from the shoulder to the rim are formed with annularcorrugations 28. It will thus be evident that whether the barrel is seton end or side, the load on the rim or on the shoulders will be smoothlyabsorbed by the outer shell, and with greater smoothness, but to alesser extent, by the inner shell. v

Preferably a band of asbestos 29 or the like is arranged along the jointl2 on the inner side of the outer shell, and a bung opening 3| and'inlet opening 32 are provided respectivelyon the side scribedembodiment, and accordingly the outer shell 34 is in the form of ahollow cylinder 35 made of half sections and secured to end walls 36 bya double lock seam joint 31; the' latter, which is enclosed by andlocked together with a covering 38, conveniently serves as the rim ofthe barrel. Support of the inner shell 3 within-the outer shell isaior-ded through means of spacers 39 and 4l formed of rubber or otherresilient rnaterial. In this case heavy annular bands 42 are aixed tothe exterior of the outer shell and provide roller shoulders 43. Thebung hole structure here shown comprises a hollow fitting 44 ."t Withina neck 45 formed with extensions of the inner and outer shells andjoined in a lock seam. A strip 41 secured to the outer shell and formedeither separate lof or integral with the bands 42 has an opening 48 forthe reception of the fitting 44, and preferably the outer surface of thestrip is ilush with the to'p of the fitting 44 so as to form a guard forthe latter.

opposed receptacles connected by a joint at their open sidesand disposedtransversely of and in a plane at right angles to thevjolnt of the innershell.

3. In .a barrel, a closed sectional inner shell comprising like opposedreceptacles connected by a reenforcing joint and extendingcircumferentially about-the center of the shell at their open sides, aclosed sectional outer shell surroundr ing and spaced from said innershell and comprising like opposed receptacles connected by a reenforcingjoint at their open side which 'encircles the outer shell about themid-portion 'thereof transversely of and in a plane at right angles tothe joint of the inner shell, and means between said shells serving tokeep same resiliently spaced apart. A

, 4. In a barrel, a shell having substantially cylindrical sectionalside walls connected with a longitudinally extending reenforci'ng jointdisposed ln a plane extending through the center of the shelllongitudinally thereof, a shell enclosing said flrst shell and havingcylindrical sectional side Walls connected with a circumferentialextending reenforcing joint disposed in a plane extending through thecenter of the shells radially thereof and intersecting and at rightangles to said first plane, and means to resiliently hold said walls inspaced concentric relation.

5. In a steel barrel, an inner shell comprising

